The Kremlin said it was Ukrainian anti-missile fire, not Russia, that struck a children's hospital in Kyiv on Monday.
Kremlin spokesman Dmitry Peskov did not provide evidence to support the assertion, but told reporters: "I insist, we do not conduct strikes on civilian targets."
Russian Foreign Ministry spokeswoman Maria Zakharova said on Tuesday that it was a NASAMS surface-to-air missile launched by Ukraine that hit a children's hospital in Kyiv on Monday.
Ukraine authorities say that Russia blasted the main children's hospital in Kyiv with a missile on Monday and rained missiles down on other cities across Ukraine, killing at least 41 civilians in the deadliest wave of air strikes for months.